Journal Article 3 surveys Research Support, Non-U.S. Gov't 1 ausencia de especies 1 catch-effort model 1 censos 1 cost-effectiveness 1 plus ... detectabilidad 1 detectability 1 dyadic data analysis 1 error 1 implementation gap 1 measurement 1 modelo de esfuerzo de captura 1 monitoreo 1 monitoring 1 other 1 rentabilidad 1 self-reports 1 species absence 1 voluntary associations 1 moins ...